How is axle weight calculated?
Multiply the center of gravity distance times the weight to get the moment for each component and item. Add all of the moments and divide by the wheelbase to get the weight on the rear axle. Subtract the rear axle weight from the total weight to get the front axle weight.
How much weight can you carry per axle?
General Rule. 35550. (a) The gross weight on any one axle shall not exceed 20,000 pounds, and the gross weight upon any one wheel, or wheels, supporting one end of an axle, shall not exceed 10,500 pounds.
What is the maximum weight allowed on a truck steering axle?
7300 kg
Maximum Legal Weight Allowed
| WEIGHT | LIMIT |
|---|---|
| Steering Axle | Maximum 7300 kg |
| Single Drive Axle | |
| Single tires | Maximum 7300 kg |
| Super single tires | Maximum 7700 kg * |
How do I adjust my axle weight?
To shift weight off the drive axles and onto the trailer tandems, you slide the trailer tandems forward toward the front of the truck. With 4 inch spacing you’re moving 250 pounds per hole so you need to move 7 holes to shift a minimum of 1,700 pounds (250 x 7 = 1,750).
How much weight can a tri axle trailer carry?
Regular Operations
| Single Axle | 20,000 lbs. |
|---|---|
| Tandem Axle | 34,000 lbs. on Interstate highways 36,000 lbs. on non-Interstate highways |
| Tridem Axle | 42,000 lbs. |
| Gross Weight | 80,000 lbs. on Interstate highways 84,000 lbs. (6 or more axles) on non-Interstate highways |
How much weight can a 4 axle truck carry?
Federal Regulations 80,000 pounds gross vehicle weight. 20,000 pounds single axle weight. 34,000 pounds tandem axle weights.
How much weight can 2 3500 pound axles carry?
7,000 pounds
The carrying capacity of two 3,500 pound axles is 7,000 pounds. The axles support not only the cargo’s weight but also the weight of the trailer’s frame and body.
Where should I set my tandems?
Tractor tandems are generally just referred to as “drives” which is short for “drive axles”. Basically the safest thing to do is set it for the California 40′ mark. That will get you close as possible to legal till you can weight out.
How does a sliding axle trailer work?
Both sliding axle and hydraulic tail trailers make it easy to load equipment and cargo with a lower load angle . A sliding axle trailer allows the trailer suspension to hydraulically move forward so the trailer has a better load angle when loading and unloading.
What is max axle weight?
The shorter the distance between front and rear axles and the fewer the axles, the lower the weight permitted per axle. The maximum allowable weight is 34,000 pounds for a tandem axle and 20,000 pounds for a single axle.
What is axle weight limit?
In the U.S. weight restrictions are generally 20,000 pounds (9,100 kg) on a single axle, and 34,000 pounds (15,000 kg) (less than two single axles) on a tandem. The primary factor is distance between axle centerlines, also used to measure bridge formulas. A bridge formula does not reduce axle load allowance,…
What is the weight limit for a single axle truck?
The federal weight limits for CMVs are 80,000 pounds (36,000 kg) for gross weight (unless the bridge formula dictates a lower limit), 34,000 pounds (15,000 kg) for a tandem axle, and 20,000 pounds (9,100 kg) for a single axle.
What is the maximum weight of a tractor trailer?
Tractors can pull two or three trailers if the combination is legal in that state. Weight maximums are 20,000 lb (9,100 kg) on a single axle, 34,000 lb (15,000 kg) on a tandem, and 80,000 lb (36,000 kg) total for any vehicle or combination.